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#include "stdafx.h"
#include "ComputeContext.h"

namespace Falcor
{
    ComputeContext::SharedPtr ComputeContext::create(CommandQueueHandle queue)
    {
        auto pCtx = SharedPtr(new ComputeContext(LowLevelContextData::CommandQueueType::Compute, queue));
        pCtx->bindDescriptorHeaps(); // TODO: Should this be done here?
        return pCtx;
    }
    
    bool ComputeContext::applyComputeVars(ComputeVars* pVars, RootSignature* pRootSignature)
    {
        bool varsChanged = (pVars != mpLastBoundComputeVars);

        // FIXME TODO Temporary workaround
        varsChanged = true;

        if (pVars->apply(this, varsChanged, pRootSignature) == false)
        {
            logWarning("ComputeContext::applyComputeVars() - applying ComputeVars failed, most likely because we ran out of descriptors. Flushing the GPU and retrying");
            flush(true);
            if (!pVars->apply(this, varsChanged, pRootSignature))
            {
                logError("ComputeVars::applyComputeVars() - applying ComputeVars failed, most likely because we ran out of descriptors");
                return false;
            }
        }
        return true;
    }
    
    void ComputeContext::flush(bool wait)
    {
        CopyContext::flush(wait);
        mpLastBoundComputeVars = nullptr;
    }
}
